USB, Toshiba

[Duncan MacGregor]

Then you have been lucky. USB devices that are starved for power do not tell 
you so. They just fail to work properly.



On Wednesday 19 January 2011 11:29:04 you wrote:
> Duncan MacGregor wrote:
> > Computer-built-in power supplies are often too weak to handle USB
> > devices.
> 
> The computer power supply isn't the problem. The power available from a USB
> port varies based on a number of factors. You can read more about the power
> available from USB ports at http://en.wikipedia.org/wiki/Usb#Powered_USB.
> You can have anywhere from 100mA to 900mA from a USB port. I was quite
> amazed when I discovered the very small, external, 500GB hard drive that my
> dad had asked me to get for him is fully powered from the USB port only. It
> doesn't need any external power.
> --
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-- 
Duncan MacGregor  -- Toronto --
--
The Toronto Linux Users Group.      Meetings: http://gtalug.org/
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